The journey of desire under the guise of an affair begins. 34-year-old big-titted married woman, Shoko, is never satisfied with the mere once-a-month intimacy she shares with her husband. What she craves is something more intense, deeper, and a purer expression of love. Invited into an illicit romance where her voluptuous breasts are passionately groped and her body thoroughly adored. Drenched in hot spring waters, their desires converge in this moment. Here begins a dirty tale of a married woman's hidden lust colliding with a man's longing.